This project demonstrates all major features introduced in Java from version 7 to 25, with practical examples, use cases, and best practices.
- Project Structure
- Java 7 Features
- Java 8 Features
- Java 9 Features
- Java 10 Features
- Java 11 Features
- Java 12-14 Features
- Java 15-17 Features
- Java 18-21 Features
- Java 22-25 Features
- Getting Started
- Contributing
java-features-comprehensive/
├── README.md
├── pom.xml
├── src/
│ ├── main/
│ │ ├── java/
│ │ │ └── com/
│ │ │ └── javafeatures/
│ │ │ ├── java7/
│ │ │ ├── java8/
│ │ │ ├── java9/
│ │ │ ├── java10/
│ │ │ ├── java11/
│ │ │ ├── java12/
│ │ │ ├── java13/
│ │ │ ├── java14/
│ │ │ ├── java15/
│ │ │ ├── java16/
│ │ │ ├── java17/
│ │ │ ├── java18/
│ │ │ ├── java19/
│ │ │ ├── java20/
│ │ │ ├── java21/
│ │ │ ├── java22/
│ │ │ ├── java23/
│ │ │ ├── java24/
│ │ │ ├── java25/
│ │ │ └── Main.java
│ │ └── resources/
│ └── test/
│ └── java/
│ └── com/
│ └── javafeatures/
└── docs/
├── java7-features.md
├── java8-features.md
├── java9-features.md
├── java10-features.md
├── java11-features.md
├── java12-14-features.md
├── java15-17-features.md
└── java18-21-features.md
- Try-with-resources: Automatic resource management
- Diamond Operator: Type inference for generic constructors
- Strings in Switch: Using String objects in switch statements
- Binary Literals: Direct binary number representation
- Underscores in Numeric Literals: Improved readability
- Multi-catch: Catching multiple exception types
- Fork/Join Framework: Parallel processing framework
- Resource management in file operations
- Generic type simplification
- Improved exception handling
- Enhanced numeric literal readability
- Lambda Expressions: Functional programming support
- Stream API: Functional-style operations on collections
- Optional: Null-safe programming
- Method References: Shorthand for lambda expressions
- Default Methods: Interface evolution
- Date/Time API: Modern date and time handling
- Nashorn JavaScript Engine: JavaScript execution in Java
- Functional programming paradigms
- Collection processing and transformation
- Null safety improvements
- Modern date/time operations
- Module System (JPMS): Modular application architecture
- JShell: Interactive Java REPL
- Factory Methods for Collections: Immutable collection creation
- Process API: Enhanced process management
- HTTP/2 Client: Modern HTTP client
- Private Methods in Interfaces: Interface evolution
- Modular application design
- Interactive Java learning and prototyping
- Immutable data structures
- Process management and monitoring
- Local Variable Type Inference (var): Type inference for local variables
- Application Class-Data Sharing: Improved startup performance
- Garbage Collector Interface: GC improvements
- Reduced boilerplate code
- Improved application startup times
- Enhanced garbage collection control
- HTTP Client: Built-in HTTP client API
- String Methods: New string utility methods
- Files Methods: Enhanced file operations
- Optional Methods: Additional Optional operations
- Predicate Methods: Enhanced predicate operations
- Local Variable Syntax for Lambda Parameters: var in lambda expressions
- HTTP client operations
- Enhanced string manipulation
- Improved file handling
- Better functional programming support
- Switch Expressions: Enhanced switch statements
- Text Blocks: Multi-line string literals
- Records (Preview): Data carrier classes
- Pattern Matching for instanceof: Type checking and casting
- Helpful NullPointerExceptions: Enhanced error messages
- Modern switch statement syntax
- Multi-line string handling
- Immutable data classes
- Improved type safety
- Sealed Classes: Restricted inheritance
- Records: Immutable data classes
- Pattern Matching: Enhanced type checking
- Text Blocks: Multi-line strings
- Foreign Function & Memory API: Native code integration
- Controlled inheritance hierarchies
- Immutable data modeling
- Enhanced type safety
- Native code integration
- Virtual Threads: Lightweight concurrency
- Pattern Matching for Switch: Enhanced switch expressions
- Record Patterns: Destructuring records
- String Templates: String interpolation
- Sequenced Collections: Ordered collection interfaces
- Foreign Function & Memory API: Stable native integration
- High-throughput concurrent applications
- Modern pattern matching
- String formatting and templating
- Native library integration
- Foreign Function & Memory API: Stable native integration
- Vector API: SIMD operations for high-performance computing
- Structured Concurrency: Simplified concurrent programming
- Scoped Values: Immutable data sharing
- String Templates: Stable string interpolation
- Unnamed Variables and Patterns: Improved code readability
- Statements before super(): Enhanced constructor flexibility
- Implicitly Declared Classes: Simplified Java programs
- Class-File API: Enhanced class file manipulation
- Stream Gatherers: Advanced stream operations
- Project Valhalla: Value types and generic specialization
- Project Panama: Foreign Function & Memory API enhancements
- Project Loom: Virtual threads and structured concurrency
- Project Amber: Language improvements
- Native code integration
- High-performance computing
- Simplified concurrent programming
- Enhanced developer experience
- Advanced stream processing
- Memory-efficient programming
- Java 21 or later
- Maven 3.6 or later
- IDE (IntelliJ IDEA, Eclipse, VS Code)
- Clone the repository:
git clone <repository-url>
cd java-features-comprehensive- Build the project:
mvn clean compile- Run specific examples:
mvn exec:java -Dexec.mainClass="com.javafeatures.java8.LambdaExamples"- Run all examples:
mvn exec:java -Dexec.mainClass="com.javafeatures.Main"Run all tests:
mvn test- Fork the repository
- Create a feature branch
- Add your examples and documentation
- Submit a pull request
This project is licensed under the MIT License - see the LICENSE file for details.